A Gray-purple Mass on the Floor of the Mouth: Gigantic Mucogingival Pyogenic Granuloma in a Teenage Patient

Lluís Brunet-LLobet 1, Jaume Miranda-Rius 2, *, Eduard Lahor-Soler 2, Ombeni Mrina 3, Alfons Nadal 4
1 Servei d’Odontopediatria, Hospital Universitari Sant Joan de Déu, Universitat de Barcelona, Barcelona, Spain
2 Departament d’Odontostomatologia, Facultat d’Odontologia, Universitat de Barcelona, Barcelona, Spain
3 Dental & Oral Department, Soweto General Hospital, Arusha, United Republic of Tanzania
4 Servei d’Anatomia Patològica, Hospital Clínic, Universitat de Barcelona, Barcelona, Spain

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© Brunet-LLobet et al.; Licensee Bentham Open.

open-access license: This is an open access article licensed under the terms of the Creative Commons Attribution Non-Commercial License ( which permits unrestricted, non-commercial use, distribution and reproduction in any medium, provided the work is properly cited.

* Address correspondence to this author at the Departament d’Odontostomatologia, Facultat d’Odontologia, Universitat de Barcelona. Feixa Llarga, s/n, 08907 L’Hospitalet de Llobregat, Barcelona, Spain; Tel: +34 934 024 269; Fax: +34 934 035 558; E-mail:


Pyogenic granuloma is defined as a benign neoplasm of vascular phenotype. This case describes the clinical and histopathological features of a gigantic mucogingival pyogenic granuloma, in a 14-year-old healthy black boy. This exophytic gray-purple mass, related to a toothpick injury, had more than twelve-month evolution on the anterior mandible involving lingual area besides to the floor of the mouth pressing the right salivary duct. Conservative excision was performed, followed by uncomplicated healing with no recurrence in two years. The histopathological examination reported a pyogenic granuloma (lobular capillary haemangioma). The authors provide a discussion of the presurgical differential diagnosis of the lesion. This case report presents an extremely uncommon location of a gigantic pyogenic granuloma, involving mucogingival complex and affecting the salivary outflow. This clinical manuscript may shed light on the controversies about possible mechanisms inducing oral pyogenic granuloma.

Keywords: Inflammatory gingival hyperplasia, lobular capillary haemangioma, mucogingival complex, pyogenic granuloma.